Explanation

Aldoses are carbohydrates that contain an aldehyde group (-CHO) in their molecular structure.

The aldehyde group is a functional group that contains a carbon-oxygen double bond and a hydrogen atom.

Examples of aldoses include glucose, galactose, and ribose.

Explanation

Metabolic reactions are both constructive (anabolic) and destructive (catabolic) reactions.

Explanation

• The general formula for alkanes is CnH2n+2, where n is the number of carbon atoms in the molecule.
• This formula represents the saturated hydrocarbons, also known as paraffins.

Key Points:

• CnH2n is the general formula for alkenes
• CnH2n+1 is the general formula for alcohols

Explanation

Immunization is actually the process of becoming immune to a disease, typically through vaccination.

It is not an effect of misusing antibiotics.

Explanation

Plants exhibit chemical coordination, also known as hormonal coordination, which involves the use of plant hormones or phytohormones to coordinate activities such as:

• Cell growth and differentiation
• Root and stem elongation
• Leaf senescence
• Flowering and fruiting
• Response to environmental stimuli

Explanation

The lens in the human eye is a convex lens, meaning it is thicker in the middle than at the edges.

This shape allows it to focus light rays convergently, creating a real image on the retina.

A convex lens is also known as a converging lens, as it converges light rays to a focal point.

Explanation

A spring balance is a device used to measure the weight of an object.

It consists of a spring that is stretched or compressed by the weight of the object, and a pointer or dial that indicates the weight.

Explanation

The vertical component of the force is:

Vertical component = Force × sin(angle)

= 15 N × sin(60°)

= 15 N × 0.866

= 13 N

So, the vertical component of the 15 N force at an angle of 60° is approximately 13 N.

Explanation

• When a saturated solution is diluted, the concentration of the solute decreases, and the solution becomes unsaturated.
• This means that the solution can still dissolve more solute than it currently contains.

Explanation

• An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal, in a solid state.
• The components of an alloy are typically mixed when they are molten, and then solidified to form a uniform solid solution.